I think we should obtain alliances with at least one other civ when we declare war on the Aztecs, to decrease the chances that the entire world gangs up on us. I might be advisable to choose someone who will not be able to take valuable Aztec land from us during the war. The Americans may be too close, and we may be in competition with them for the valuable land bridge to the east. I suggest a civ further past them, maybe the English...